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Home >> Chevrolet >> 2009 >> HHR SS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 4T45-E - DTC P0218 To DTC P2764) >> DTC P1810, P1816, or P1818 >> Conditions for Setting the DTC >> P1818

Conditions for Setting the DTC: P1818

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The TCM detects a PARK, NEUTRAL, or a drive range with a REVERSE ratio for 3 seconds.